Allowing overlapping signing/encryption keys

When you have a local PGP partner packaging signing/encryption key scheduled for future use (using the Certificate Exchange dialog box via the My Certs tab), there might be a period of time where the new key has been scheduled but not yet activated. To prevent a situation where decryption of an inbound file fails using the installed key during this "overlap" period, you can configure your system to attempt decryption using the scheduled but not-yet-active key. Additionally, during this overlap period, outbound files are signed using both the installed and scheduled keys to avoid possible signature verification errors by the trading partner. By default, the Allow Overlapping Key Usage option is selected.